The cavity generated with water entry of a magnetic fluid coated cylindrical magnet

Seiichi Sudo, Hirayoshi Takayanagi, Tetsuya Yano, Hideya Nishiyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents an experimental study on the cavity generated with water entry of a magnetic fluid coated cylindrical magnet. The permanent magnet is cylindrical NdFeB magnet with the magnetic flux density B=390mT. The kerosene-based magnetic fluid is adsorbed to the permanent magnet. This projectile collided with the surface of water in the rectangular container made of the transparent acrylic plastic. The cavity of air in water created by the impact of the magnetic fluid coated cylindrical magnet was observed with high-speed video camera system. The experiments were performed under nonmagnetic and alternating magnetic fields. The effect of the hydrodynamic forces on the cavity formation was clarified. The effect of the alternating magnetic fields on the pinch-off time of an air cavity was also revealed.

Original languageEnglish
Title of host publicationElectro-Rheological Fluids and Magneto-Rheological Suspensions - Proceedings of the 12th International Conference
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages708-714
Number of pages7
ISBN (Print)9814340227, 9789814340229
DOIs
Publication statusPublished - 2011 Jan 1
Event12th International Conference on Electrorheological Fluids and Magnetorheological Suspensions, ERMR 2010 - Philadelphia, PA, United States
Duration: 2010 Aug 162010 Aug 20

Publication series

NameElectro-Rheological Fluids and Magneto-Rheological Suspensions - Proceedings of the 12th International Conference

Other

Other12th International Conference on Electrorheological Fluids and Magnetorheological Suspensions, ERMR 2010
CountryUnited States
CityPhiladelphia, PA
Period10/8/1610/8/20

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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  • Cite this

    Sudo, S., Takayanagi, H., Yano, T., & Nishiyama, H. (2011). The cavity generated with water entry of a magnetic fluid coated cylindrical magnet. In Electro-Rheological Fluids and Magneto-Rheological Suspensions - Proceedings of the 12th International Conference (pp. 708-714). (Electro-Rheological Fluids and Magneto-Rheological Suspensions - Proceedings of the 12th International Conference). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/9789814340236_0097